Talk:Northern Thailand
Discussion page of Northern Thailand
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Page scope
Northern Thailand treats the nine provinces of northern Thailand as a cannabis growing region. Its growing areas, accessions and news items are listed on the page.
Data verification
Record source conflicts, dating problems and sources not used here. Keep narrative content on the article.
Discussion
Border
The region is the northern region of Thailand's six-region system (regions of Thailand): the provinces of Chiang Mai, Chiang Rai, Lampang, Lamphun, Mae Hong Son, Nan, Phayao, Phrae and Uttaradit. Its border on the map follows the OpenStreetMap boundaries of those provinces, clipped to the land border and simplified. Tak, which some schemes count as northern, belongs to Western Thailand here. The infobox leaves gene pool and regional complex empty: no existing grouping covers the northern provinces.
Sources
- Herbarium sheets. The labels of the Forest Herbarium sheets SN 009247 (Garrett 851, 1933), SN 116705 (Phengklai T-49897, 1984) and SN 262497 (Nanakorn 7031, 1996) are transcribed from the sheet images, and the two Meise sheets of Boulanger 1262 and 1520 (1977) likewise. Maxwell 88-1359 (1988), 93-943 (1993) and 97-797 (1997) are cited from their GBIF records, and Srithi 404 (2010) from the Queen Sirikit Botanic Garden database. Each has its own accession page.
- Hemp. The Thai press reports (Matichon 2018, Thai PBS 2019 and 2023, Thairath 2020) are in Thai. Tipparat and colleagues (2014), Aksonsit and colleagues (2025) and Charoennawakul and colleagues (2025) are cited from their full texts; Denes and Boonyasurat (2023) from the journal's web page.
- Licensed growing. The Thansettakij, MGR Online, Thai Post, Naewna and Thairath reports are in Thai. Figures for areas and plants follow each report.
Where the sources disagree
- Ban Mae Sa Noi and Ban Mae Sa Mai. The same Hmong village head appears at Ban Mae Sa Noi in Matichon (2018) and at Ban Mae Sa Mai in Thai PBS (2019). Both villages are in Mae Rim; the page gives each report's village name.
- How many provinces. Matichon (2018) and The Nation (2017) list 15 hemp districts in six provinces, including Mueang Mae Hong Son; Post Today (January 2018) names five provinces for the pilot plantings, without Mae Hong Son. The page gives the district list.
Not used
- A Bangkok Post report of May 2019 listing the provinces where hemp was being planted: the copy read prints its text letter-reversed.
- The Department of Agriculture's list of native cultivars names one Mae Chan; it does not say the line comes from Mae Chan District of Chiang Rai.
- A 2021 press item on a research centre in Nan concerns an application for a licence, not a crop.
- Several herbarium sheets from the region describe a plant without saying it was cultivated (Bunchuai 1208, 1962, "common in plantation"; Pongamornkul 729, feral; Suvannasuddhi 457, 1940, whose Thai note may mean planted or self-sown). They are not filed under the region. Panyadee 319 (2022) was grown at a laboratory in Chiang Mai from seed of unknown origin and is not filed under it either.